Oven for pit barbecue



Aug. 23, 1955 c. D. NEWLAND ET AL OVEN FOR PIT BARBECUE 3 Sheets-Sheet lFiled IOMM 25, 1952 INVENTORS Clarence Zezalcmd Elmo L. Cranford y@ w aa M M /W w f ,.O j f .5 m/ XGL \|s w y ,Q/ 4 f w 7 wf Q/ Q y o f 0 NW 20 Z f M E M\ m W z. f w y Z N Any.

OVEN FOR PIT BARBECUE s sheets-sheet 2 Filed 001'.. 25, 1952 w ,Wim MJ wmf@ A T e a f @y mcf WW O L e! o 5 mi .m/ Q W p /w ,fd 0 y /4 ,a Q M 4 4a ((7., f (/M /7 o ,4 7.7i Z w1. Z l o /2 w/Z ,z G a Z I L; M ,0, M /wAug. 23, 1955 c. D. NEWLAND ET AL 2,715,897

OVEN FOR PIT BARBECUE v Filed Oct. 25, 1952 5 Sheets-Sheet 5 1N VEN TOR.CIO/ence D. flew/and By 27720 L. Cranford Azay.

United States Patent OVEN FOR PIT BARBECUE Clarence D. Newland, CouleeDam, and Elmo L. Cranford, Spokane, Wash.

Application October 25, 1952, Serial No. 316,924

4 Claims. (C11. 126-29) The present invention relates to improvements inan oven for pit barbecue. i i i The successful barbecuing of meats isonly accomplished by utilizing the heat and smoke from a pit iire insuch a manner that the meats are subjected to relatively lowtemperatures for cooking and kept in the atmosphere of the smoke from awood re to impart the desired flavor. It is the purpose of the presentinvention to provide an oven for pit barbecue which is of a simpleknocl-down construction and which will enable the user to so control theoperation as to properly barbecue the meat with a minimum of diiculty. i

Our invention contemplates the provision of an oven which comprises anopen bottom shell, the top wall of which is provided with a smoke outleton which a stove pipe or chimney is removably mounted. The shell is ofSuch a nature that there is a foot ange to rest on the ground around thetire pit and to provide a ledge at the front of the oven for supportinga front cover for the re pit. The shell itself is made up of flangedwalls with the ilanges extending diagonally outwardly from the meetingedges of the wall so that they may be clamped together readily and takenapart for transportation. With the shell the side walls have ledges tosupport a rack on which the pan containing the meat may be set. Theconstruction is such that these ledges provide also the means forletting the smoky gases rise from the pit fire to bring them in contactwith the meat and thus to avor the meat.

The nature and advantages of our invention will appear more fully fromthe following description and the accompanying drawings wherein apreferred form of the invention is illustrated. It should be understood,however, that the drawings and description are illustrative only and arenot intended to limit the invention except insofar as it is limited bythe claims.

In the drawings:

Figure l is a longitudinal sectional view through an oven embodying ourinvention;

Figure 2 is a view in side elevation of the oven;

Figure 3 is a front view of the oven;

Figure 4 is a fragmentary perspective view of the front portion of theoven and part of the pit cover sheet;

Figure 5 is a fragmentary View illustrating how the food rack issupported widiin the oven and showing supporting flange on the oven; and

Figure 6 is a detailed view illustrating the way in which the front dooris held closed.

Referring now to the drawings, our improved oven for pit barbecue isshown in Figure l over a lire pit indicated generally at 10, with a pan11 within the oven positioned to support a piece of meat 12 forbarbecuing. In the art of barbecuing meat, it is essential that certainsimple rules be followed. The pit must first be heated by building aiire within it and allowing the fire to burn down suciently to establisha bed of coals. The oven is then placed over the pit at least longenough to insure adequate heating of the oven. The meat is then preparedand placed within the oven and the tire within the pit is f'f' 2,715,897Patented Aug. 23, 1955 2 supplied with suricient green wood of thedesired type to flavor the meat so that'a relatively slowA burning,smoking lire will be maintained in the pit.` 4 M According to ourinvention, we provide an oven which is made up of a top wall 14, a rearwall 15 and Aside walls 16 and 17. The top wall 14 has ana'pertureiiwith turned up flanges of metal 19 on which a chimney or"stove pipe 20is removably'supported. A' damper 21 isprofvided in the stove pipe 20.The front of the Vshellvhas a cross bar 22 at the bottom and this cross`b'a'rha's'a door 23 hinged to it so that the door swings downwardly andoutwardly for access to the oven. The `fire pit 10 is always dug longerthan the oven so that the wood may be fed into the pit from in front ofthe oven. TheA cross bar 22 has a forwardly extending lange 24 thatforms support for one edge of a pit cover 25. The pit cover has an airinlet 25a, and a spring held adjustable cover 25b over the inlet 25a tocontrol the air supply. A'handle 26 is provided on the cover 25. It isessential to provide adequate support for the meat pan within the ovenVinV such a fashion that the smolry gases arising from the lire-with;`in the pit will be made to circulate over the pan and conf tact themeat. A rack 27 consisting of cross bars 2S and longitudinally runningbars 29 is'rernovably mounted in the oven at a level which will hold thepain slightly" above the lower edge of the door'23. i

One of the novel featuresvof the present invention is the manner inwhich theV walls 14, 15, 116` and 17, the bar 22 and the door 23 areformed to give theml maximum rigidity and to enable them to be takenapart and trans? ported in knock-down fashion. The meeting edges of theseveral walls, and the door are provided with outwardly and diagonallyextending flanges 34B. These flanges make angles of 45 degrees with thewalls so that when the walls are put together, the flanges of any twomeeting walls will lie parallel against each other. The flanges areremovably clamped together by a simple clamping means 31 such as a screwbolt and a Wing nut. The diagonal anges serve as stiffeners for thewalls and yet permit the walls to nest or collapse into a flat package.The front bar 22 has its diagonal flanges 30 at the ends of the bar. Thetop edge portion 22 of the bar 22 and the lower edge portion 23 of thefront door 23 are knurled over to provide hinges that are held by ahinge pin 32.

It will be appreciated that the pan for the meat will block most of thecirculation area for the gases arising from the re in the pit. Thesupporting load is mostly the weight of the pan and the weight of therack 27. In order to insure adequate strength and support at the bottomof the oven, the side walls 16 and 17 are constructed with inner ledges33 in the manner illustrated in Figure 5 of the drawings. The lower edgeof each side wall is bent inwardly to provide a supporting portion 34and then upwardly to provide the ledge 33. Apertures 35 are formed inthe upwardly extending portion 36 between the ledge 33 and the bottomportion 34. A channel member 37 is provided with a re-entrant portion 38so that it can be hooked over the ledge 33. There are two of thesechannel members 37, one for the wall 16 and the other for the wall 17.The channel members 37 have apertures 39 therein which align with theapertures 35 when the channel members are in place. The channel members37 have bottom flanges 40 which extend outwardly beneath the portions 34and beyond the walls 16 and 17 to rest on the ground around the pit 10and provide a stable support for the oven.

The door 23 is provided with a simple closing latch illustrated inFigures l, 3 and 6 of the drawings. This latch comprises a plate 41which is pivoted to the top flange 30 of the door 23 by a pivot pin 42.A handle 43 projects outwardly at right angles to the plate 41.

tov hook over the flange 39 ofthe top wall i4.

It is believed that the nature and advantages` of our invention willbeapparent from the foregoing descrip- 1 tion. Having thus` describedour invention, we claim:

f 1,.'An oven for pit barbecue of foods Vcomprising an open bottomsheet'metal shell having a top wall provided with asmoke outlet andhaving a rearend wall and side walls secured to the top wall, a frontlower bar connected to the lower front ends of said side walls, and afront door hingedralong its lower edge tosaid bar, a

Y Y reticulated food supporting rack in the shell, said shell fhavingthe lower portion of its sidewalls extended inwardly,.then upwardly andoutwardly to provide inwardly and upwardly extended ledges spacedinwardly from the sidewalls supporting the food rack, and supportingchan- VrThe plate 41 has a hook extension 44 which is adapted v Wallssecured to the top wall, a front lower bar connected to the lower frontends of said side walls, and a frontY open bottom sheet metal shellhaving atop wall pro-Y vided with a smoke outlet and having a rear endwall nels interlockedVV with said ledges and having bottom i flangesprojecting outwardly beneath and beyond the side walls for supportingthe shell over apit.

V2. `An ovenrfor pit Vbarbecue of foodsy comprising an open Vbottomsheet metal shell having a top wall provided Y with a smoke outlet andhaving a rear end wall and side t walls secured to the top wall, a frontlower bar connected -to the lower front'ends of said Vside walls, and afront Vdoor hingedralong its lower edge to said bar, a reticulated foodsupporting rack in the shell, said shell havingV the Vlower portions ofits side walls extended inwardly, then upwardly and outwardly to provideinterior ledges spaced inwardly from the side walls supporting the foodrack, Vthe f ront bar having aY forwardly projecting ilange and aseparate pit cover resting on the ilange of said bar.

`3. An oven for pit barbecue of foods comprising an Y open bottom sheetmetal shell having a top wall provided with a smoke outlet and having arear end wall'and side and side walls secured to the top wall, a frontlower bar connected to the lower front ends ofsaid sidewalls, and afront door hinged along its lower edge to said bar, a

reticulated food ysupporting rack in the shell, Vsaid shell having thelower portions of its side Walls extended inwardly, then upwardly andoutwardly to provide in-lV wardly and upwardly'extended ledges 'spacedVinwardly from the side walls supporting Ythe food rack,'and ,su'pj fporting channels interlocked with said ledges and having bottom angesprojecting outwardly beneath and-beyond the side walls for supportingthe shell over a pit; the supporting channels and ledges being providedwith aligned apertures for passage of the gases of combustion.

References Cited inthe file ofthis patent UNITED STATES PATENTS 587,528Inman Aug. 3, l897- 726,828 ,Schmid Apr. 28, 1903 970,501 Holbrook Sept.20, l9l0

